Earn point on your loyalty program!arrow arc left

Cheap flights from St Louis (STL) to Calcutta (CCU)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from St Louis (STL) to Calcutta (CCU)

How to find the cheapest flight from St Louis (STL) to Calcutta (CCU)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to Calcutta (CCU)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to Calcutta (CCU)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from St Louis to Calcutta in April , May 2026

30 Apr - 27 May $ 2,288.00
STL
St Louis
Frontier Airlines
3 STOPS
CCU
Calcutta
CCU
Calcutta
Frontier Airlines
3 STOPS
STL
St Louis
Pick dates
30 Apr - 30 May $ 2,289.00
STL
St Louis
Frontier Airlines
3 STOPS
CCU
Calcutta
CCU
Calcutta
Frontier Airlines
3 STOPS
STL
St Louis
Pick dates
30 Apr - 30 May $ 2,292.00
STL
St Louis
Frontier Airlines
3 STOPS
CCU
Calcutta
CCU
Calcutta
Frontier Airlines
3 STOPS
STL
St Louis
Pick dates

One-way flights to Calcutta from St Louis

7:00 AM - 11:45 AM
IndiGo Airlines
3 Stops
44h 10m
STL - CCU
$ 908
Kiwi
Pick dates
8:06 PM - 2:30 AM
Air India Limited
3 Stops
46h 14m
STL - CCU
$ 983
Kiwi
Pick dates
8:06 PM - 10:00 PM
Air India Limited
3 Stops
41h 44m
STL - CCU
$ 986
Kiwi
Pick dates

How to find the cheapest flight from St Louis (STL) to Calcutta (CCU)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to Calcutta (CCU)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to Calcutta (CCU)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.